2111122100222 has 4 divisors (see below), whose sum is σ = 3166683150336. Its totient is φ = 1055561050110.

The previous prime is 2111122100209. The next prime is 2111122100231. The reversal of 2111122100222 is 2220012211112.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2111122100222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527780525054 + ... + 527780525057.

It is an arithmetic number, because the mean of its divisors is an integer number (791670787584).

Almost surely, 2^{2111122100222} is an apocalyptic number.

2111122100222 is a deficient number, since it is larger than the sum of its proper divisors (1055561050114).

2111122100222 is a wasteful number, since it uses less digits than its factorization.

2111122100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055561050113.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2111122100222 its reverse (2220012211112), we get a palindrome (4331134311334).

The spelling of 2111122100222 in words is "two trillion, one hundred eleven billion, one hundred twenty-two million, one hundred thousand, two hundred twenty-two".